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v3.21.2

Related Party Transactions - Summary of Related Party Transactions (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2021 | Jun. 30, 2020 | Jun. 30, 2021 | Jun. 30, 2020
Related Party Transaction [Line Items] |  |  |  |
Net sales | $ 306.4 | $ 285.6 | $ 574.7 | $ 556.6
Glencore [Member] |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Net sales | 306.4 | 285.6 | 574.7 | 556.6
Purchases | $ 79.5 | $ 33.4 | $ 151.8 | $ 73.6

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